BGS mineralogy and petrology collection record

Sample number	E38726; COLLNOCE6;
Sample Donor	Evans,C.D.R.
Rock name	'Original entry: Dolerite'
Stratigraphy	Not entered
Comments	Cleaved calcite rich margin to a dolerite intrusion
Locality details	980 yds 345 deg from Dolwyddelan Castle
50k map sheet	Snowdon (119) View images in GeoScenic related to 'Snowdon' View the geology near 'Snowdon'
Map reference	SH 7148 5305
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.